EQUATE (BLUE MINT) VS LISTERINE (COOL MINT) You have two brand names in mouthwash EQUATE and LISTERINE which one is the better brand in the end? From facts stated which product refreshes the breath better? Well in the end the choice is yours being the bargain conscious consumer. Equate Blue Mint a product distributed by Wal-Mart Stores, Inc. This product is pitched as an antiseptic mouth rinse that kills germs caused by plaque, gingivitis, and bad breath with the deal sealer approved by the American Dental Association.
Experiment 4: Using Buffers Name: Andrew Duval Lab Partners: None Location: My House Course Number: Chem 112 Date: July 28, 2013 Abstract: This lab aims to teach us about the use of buffers, or in this case vinegar. Buffers are used to control the pH of a solution, because they are able to able to absorb strong acid or bases. Because of this fact, we can add acid or basic mixtures and control the outcome of the pH by also mixing a buffer in there as well. In this lab we will be adding 0.1M and 6M HCL and NaOH to a two mixtures. One mixture will contain vinegar, and the other will contain distilled water.
Solubility and Conductivity Introduction Solubility by definition means “the quality or property of being soluble; relative capability of being dissolved” and in chemistry this tells us whether or not a substance is dissolvable, but in the medical field it can mean you have a homeostatic imbalance (Webster, 2010). They use “a screening test for sickle cell hemoglobin (Hb S), which is reduced by dithionite and is insoluble in concentrated inorganic buffer; addition of blood showing Hb S to buffer and dithionite causes opacity of the solution” (Solubility, 2012). This is just one of many uses of solubility in the medical field. Conductivity by dictionary definition is “Physics. The property or power of conducting heat, electricity, or sound” and is used as such in chemistry (Dictionary, 2014).
Nursing Plans and Interventions: The nurse applies a sterile nasal drip pad and initiates interventions to prevent increased intracranial pressure (ICP). 3. Which nursing intervention should be initiated to prevent increased ICP? A) Apply a hyperthermia blanket. B) Administer a prescribed stool softener as needed (PRN).
Most cases of psoriasis are treated with medications that are placed directly on the skin or scalp: · Cortisone[->4] creams and ointments · Creams or ointments that contain coal tar[->5] or anthralin · Creams to remove the scaling (usually salicylic acid[->6] or lactic acid) · Dandruff shampoos (over-the-counter or prescription) · Moisturizers · Prescription medicines containing vitamin D[->7] or vitamin A (retinoids) [->0] - http://health.yahoo.net/ahfscontent/miconazole [->1] - http://health.yahoo.net/goldcontent/butoconazole [->2] - http://health.yahoo.net/goldcontent/fluconazole-2 [->3] - http://health.yahoo.net/goldcontent/clotrimazole-2 [->4] - http://health.yahoo.net/goldcontent/cortisone [->5] -
According to the Revell's lab experiment, aspirin, acetaminophen, caffeine recoveries are 60% or higher, <10% and <5%, respectively. The reason for such a low percent recoveries for acetaminophen is due to a formed solid is too fine to be filtered, and for caffeine is due to its low solubility in diethyl ether(1.8mg/ml) than in water (22mg/ml). Not only caffeine's solubility in water can affect its percent recoveries, but also it can affect other two compounds by contaminating with caffeine. For the TLC, expected approximate Rf values for aspirin, acetaminophen, and caffeine are 0.6, 0.3, and 0.1 , respectively. Procedures A.
EXPERIMENT: TECH 0704, Distillation, macroscale technique only, simple and fractional: Substitute a mixture of 25 mL ethanol and 25 mL water for the toluene/cyclohexane mixture. Record the temperature at 2 mL intervals of distillate. Use glass beads to pack the fractionating column. Construct a graph of temperature vs volume for each distillation in your lab notebook. Compare the efficiencies of the two distillation methods in your lab notebook.
The one that stayed blue is a base. You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). Devise a simple test to confirm the presence or absence of lead in that hair tonic. * In order to test the presence of lead, you can use potassium iodine. If the lead was present, a yellow would be
Determination of the percentage purity of aspirin Introduction The aim of this experiment is to determine the percentage purity of 2-ethanoyl-hydrobenzoic acid (acetylsalicylic acid) in aspirin tablets. A known amount of standard sodium hydroxide solution is used in excess to hydrolyze a known mass of aspirin tablets: CH3COOC6H4COOH(s) + NaOH(aq) → C9H7O4Na(s) + H2O(l) The unused sodium hydroxide which remains is then titrated with standard nitric acid solution of 1 mol. NaOH(aq) + HCl(aq) → NaNO3(s) + H2O(l) The amount of alkali required for the hydrolysis can now be calculated and from the above equation, the amount of moles of acetylsalicylic acid which has been hydrolyzed can be found. Research question | Independent variablesnumber
In this laboratory exercise, you can prepare aspirin (acetylsalicylic acid) from salicylic acid and acetic anhydride using the following reaction: salicylic acid (C7H6O3) + acetic anhydride (C4H6O3) --> acetylsalicylic acid (C9H8O4) + acetic acid (C2H4O2) How to Make Aspirin - Acetylsalicylic Acid - Objectives & Materials First gather the chemicals and equipment used to synthesize the aspirin: Materials * 3.0 g salicylic acid * 6 mL acetic anhydride* * 5-8 drops of 85% phosphoric acid or concentrated sulfuric acid* * distilled water (about 50 mL) * 10 mL ethanol * 1% iron III chloride (optional, to test purity) *Use extreme caution when handling these chemicals. Phosphoric or sulfuric acid and acetic anhydride can cause severe burns. Equipment * filter paper (12.5 cm) * ring stand with funnel * two 400 mL beakers * 125 mL Erlenmeyer flask * 50 mL buret or